Click on the third or sixth rank to set the en passant target square.

EGTB: win in 6 half-moves

# move score
1 Kb6 win in 5 half-moves
2 Kc6 win in 5 half-moves
3 Ka6 draw
4 Kc7 draw
5 Kc8 draw
6 Ka7 loss in 16 half-moves
7 Ka8 loss in 16 half-moves
8 Kb8 loss in 16 half-moves